Stratified charge rotary aircraft engine technology enablement program

The multifuel stratified charge rotary engine is discussed. A single rotor, 0.7L/40 cu in displacement, research rig engine was tested. The research rig engine was designed for operation at high speeds and pressures, combustion chamber peak pressure providing margin for speed and load excursions above the design requirement for a high is advanced aircraft engine. It is indicated that the single rotor research rig engine is capable of meeting the established design requirements of 120 kW, 8,000 RPM, 1,379 KPA BMEP. The research rig engine, when fully developed, will be a valuable tool for investigating, advanced and highly advanced technology components, and provide an understanding of the stratified charge rotary engine combustion process

Delegation to Independent Regulatory Authorities in the Media Sector: A Paradigm Shift through the Lens of Regulatory Theory

Today, it seems that independent regulatory authorities have almost become a natural institutional form for regulatory governance. This trend has economic and political roots, and numerous normative arguments for creating independent regulatory authorities have been put forward in the international economic, social science and legal literature, which this chapter will explore briefly. In the case of audiovisual media regulatory authorities the normative arguments for setting up independent regulators are more complex than just economic regulation. In the case of media there is a perceived need to prevent politicians and executivebranches of government from exercising control over regulatory authorities because those would otherwise be highly susceptible to partisan interference. In this area, independence, as an institutional value of the regulator that should ensure the impartial and fair handling of its competences, has been a widely accepted media regulatory paradigm since the 1980s. This chapter will link regulatory theory and delegation to independent agencies with the inceptionof independent media regulatory authorities in Europe and introduce the various waves of development which have made this the leading institutional choice for audiovisual media governance

1995 atmospheric trace molecule spectroscopy (ATMOS) linelist

The Atmospheric Trace Molecule Spectroscopy (ATMOS) experiment uses a Fourier-transform spectrometer on board the Space Shuttle to record infrared solar occultation spectra of the atmosphere at 0.01-cm^(-1) resolution. The current version of the molecular spectroscopic database used for the analysis of the data obtained during three Space Shuttle missions between 1992 and 1994 is described. It is an extension of the effort first described by Brown et al. [Appl. Opt. 26, 5154 (1987)] to maintain an up-to-date database for the ATMOS experiment. The three-part ATMOS compilation contains Line parameters of 49 molecular species between 0 and 10000 cm^(-1), The main list, with nearly 700,000 entries, is an updated version of the HITRAN 1992 database. The second compilation contains supplemental line parameters, and the third set consists of absorption cross sections to represent the unresolvable features of heavy molecules. The differences between the ATMOS database and other public compilations are discussed

Measurement of atmospheric composition by the ATMOS instrument from Table Mountain Observatory

Following its first flight on board the Space Shuttle 'Challenger' as part of the Spacelab 3 payload, the Atmospheric Trace Molecule Spectroscopy (ATMOS) instrument has been operated at the Jet Propulsion Laboratory's Table Mountain Observatory (TMO; 34.4 deg N, 117.7 deg W, 2.23 km altitude) in the San Gabriel Mountains of Southern California. With the delay in the resumption of regular Shuttle flights, ATMOS has acquired a large number of high-quality, high-resolution infrared solar absorption spectra, spanning a period between late-1985 and mid-1990. These spectra are being analyzed to derive the column abundances of several atmospheric species including O_3, HCl, HF, and HNO_3. Although limited in temporal coverage, the preliminary results for these gases are discussed here in the context of the requirement and contribution to be made by similar instruments in detecting long term changes in stratospheric composition

Stratified Charge Rotary Engine Critical Technology Enablement, Volume 1

This report summarizes results of a critical technology enablement effort with the stratified charge rotary engine (SCRE) focusing on a power section of 0.67 liters (40 cu. in.) per rotor in single and two rotor versions. The work is a continuation of prior NASA Contracts NAS3-23056 and NAS3-24628. Technical objectives are multi-fuel capability, including civil and military jet fuel and DF-2, fuel efficiency of 0.355 Lbs/BHP-Hr. at best cruise condition above 50 percent power, altitude capability of up to 10Km (33,000 ft.) cruise, 2000 hour TBO and reduced coolant heat rejection. Critical technologies for SCRE's that have the potential for competitive performance and cost in a representative light-aircraft environment were examined. Objectives were: the development and utilization of advanced analytical tools, i.e. higher speed and enhanced three dimensional combustion modeling; identification of critical technologies; development of improved instrumentation, and to isolate and quantitatively identify the contribution to performance and efficiency of critical components or subsystems

European audiovisual media policy in the age of global video on demand services: A case study of Netflix in the Netherlands

This article considers the provisions in the European Union's revised Audiovisual Media Services Directive concerning video on demand (VOD) services and the effectiveness of supply-side cultural diversity regulations in achieving their purported policy goals of increased production and consumption of European works. Because the Netherlands is the 'country of origin' to several multinational VOD services, including Netflix, we conducted a case study of this specific national context. We examine the quota for and prominence of European works, as well as different forms of financial obligations. We find that the former two policy tools may require new strategies to effectively reach their objectives in a nonlinear context. Our evidence also indicates that the latter remains controversial in the domestic audiovisual industry, as stakeholder positions are dependent on the type(s) of production stimulated. Based on this, we argue that securing the independence of producers and ensuring VOD services are transparent with respect to performance data are essential to promoting source diversity and a sustainable value chain

European audiovisual media policy in the age of global video on demand services: A case study of Netflix in the Netherlands

This article considers the provisions in the European Union's revised Audiovisual Media Services Directive concerning video on demand (VOD) services and the effectiveness of supply-side cultural diversity regulations in achieving their purported policy goals of increased production and consumption of European works. Because the Netherlands is the 'country of origin' to several multinational VOD services, including Netflix, we conducted a case study of this specific national context. We examine the quota for and prominence of European works, as well as different forms of financial obligations. We find that the former two policy tools may require new strategies to effectively reach their objectives in a nonlinear context. Our evidence also indicates that the latter remains controversial in the domestic audiovisual industry, as stakeholder positions are dependent on the type(s) of production stimulated. Based on this, we argue that securing the independence of producers and ensuring VOD services are transparent with respect to performance data are essential to promoting source diversity and a sustainable value chain

GRP78 as a marker of pre-eclampsia: an exploratory study

Although the exact mechanisms that lead to shallow invasion or defective trophoblastic differentiation in pre-eclampsia are still unknown, it is widely admitted that the etiology of pre-eclampsia is a defect in trophoblast invasion of the uterine spiral arteries. We have previously observed that the status of a chaperone protein, glucose regulated protein 78 (GRP78) is associated with the invasive properties of cytotrophoblastic cells; we therefore hypothesized that circulating GRP78 could serve as a diagnostic tool in pre-eclampsia. In a prospective case-control study, we quantified GRP78 autoantibodies, complexes of GRP78 with autoantibodies and GRP78 (C-term fragment, N-term fragment and full-length GRP78) by ELISA. Plasma from women diagnosed with pre-eclampsia (n = 16), from women during the first trimester of pregnancy who subsequently developed pre-eclampsia (n = 10) and from healthy pregnant women (controls, n = 58 at term, n = 26 at first trimester) were analysed and compared. We observed no significant difference between pre-eclamptic and healthy pregnant women for autoantibodies-GRP78 complexes or total GRP78 at both first trimester and at delivery. In contrast, the ratio of C-terminal GRP78 over full length GRP78 was significantly different in plasma of pre-eclamptic patients as compared with controls both during first trimester (P < 0.004) and at term (P < 0.0001). Our findings suggest that circulating C-terminal GRP78 reflect the invasive properties of cells, and could be used as a predictive marker for pre-eclampsia early in pregnanc

Measurement of atmospheric composition by the ATMOS instrument from Table Mountain Observatory

Following its first flight on board the Space Shuttle 'Challenger' as part of the Spacelab 3 payload, the Atmospheric Trace Molecule Spectroscopy (ATMOS) instrument has been operated at the Jet Propulsion Laboratory's Table Mountain Observatory (TMO; 34.4 deg N, 117.7 deg W, 2.23 km altitude) in the San Gabriel Mountains of Southern California. With the delay in the resumption of regular Shuttle flights, ATMOS has acquired a large number of high-quality, high-resolution infrared solar absorption spectra, spanning a period between late-1985 and mid-1990. These spectra are being analyzed to derive the column abundances of several atmospheric species including O_3, HCl, HF, and HNO_3. Although limited in temporal coverage, the preliminary results for these gases are discussed here in the context of the requirement and contribution to be made by similar instruments in detecting long term changes in stratospheric composition